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Homework Help: Carnot refrigerator and energy

  1. Mar 28, 2010 #1
    1. The problem statement, all variables and given/known data
    a carnot refrigerator takes heat from water at 0 degree celsius and rejects heat to a room at 27 degree celsius. if 50kg of water at 0 degree celsius is converted to ice at 0 degree celsius. how much energy must be supplied to the refrigerator?

    2. Relevant equations

    Sorry, i dont know how to do it.... Please help me. i have an exam this coming april and one of the question given in their practise set is regarding this matter.

    3. The attempt at a solution

  2. jcsd
  3. Mar 28, 2010 #2
    Ever heard of latent heat? try finding an equation to do with this
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